In the spring of 1979, one child is found dead and another child disappears. The next day, a nuclear power plant accident at the nearby Three Mile Island facility adds to the stress put on the Middletown police department. Piano teacher, Missy Jenkins, lives across the street from the missing girl, Lindsay Blum, who is her piano student. When an evacuation causes Lindsay's pregnant mother to leave town, Missy goes with her to a shelter in nearby Hershey, PA. Missy uses her unique perspective and talents to find Lindsay, with the help of her friend, Middletown police officer Mark Milner and TV reporter, Kaye Roberts. Terror doubles as the days pass with no leads, more children are found dead in towns across PA, and the Three Mile Island disaster causes widespread panic. But when President Carter pays a visit to the nuclear power plant, a ray of hope begins to calm the community down as the worst of the emergency seemed to subside as well. However, when the women return home, Lindsay is still missing. Missy continues her search and finds herself in deep trouble when she finds Lindsay and encounters the killer.